Question

我必须根据expando值显示DLFileEntry记录。我已经按照我认为足够清楚的链接https://www.liferay.com/community/wiki/-/wiki/Main/Search+for+objects+by+custom+attributes了。

当我在这里实施同样的事情时...我得到'没有记录可用'..

我从循环中获取的主键值存在于DLFileEntryMetadata中，但不存在于DLFileEntry表中。因此，显示的默认消息是没有可用的记录。

    <liferay-ui:search-container delta="5"  emptyResultsMessage=
    "no-records-available-  for-employee"  deltaConfigurable="true" >
     <liferay-ui:search-container-results>
    <%
      long classNameId = ClassNameLocalServiceUtil.getClassNameId(DLFileEntry.class);
    long companyId = PortalUtil.getDefaultCompanyId();
    List<ExpandoValue> values = ExpandoValueLocalServiceUtil.getColumnValues(companyId,
            classNameId, ExpandoTableConstants.DEFAULT_TABLE_NAME, 
            "employeeId",String.valueOf(employeeId), -1, -1); 
    out.println(values.isEmpty());
    List<DLFileEntry> empFiles = new ArrayList<DLFileEntry>();

    DLFileEntry fileEntry;       


    for (int i = 0; i < values.size(); i++) {
     long fileId = values.get(i).getClassPK();
      try{
          out.println(userId);
        fileEntry =  DLAppLocalServiceUtil.getFileEntry(fileId);
        empFiles.add(fileEntry);

      }catch(Exception e ){ 

      }
    }

    searchContainer.setResults(empFiles);
    total = results.size(); 
    pageContext.setAttribute("results", results);
    pageContext.setAttribute("total", total);
    %>
</liferay-ui:search-container-results>
<liferay-ui:search-container-row  className="com.liferay.portlet.documentlibrary.model.DLFileEntry" modelVar="fileEntry"  rowVar="curRow" 
escapedModel="<%=true %>">
    <liferay-ui:search-container-column-text orderable="true" name="Name"
     property="name" />
    <liferay-ui:search-container-column-text orderable="true" name="Extension"
    property="extension"/>
    <liferay-ui:search-container-column-text orderable="true" name="Mime Type"
    property="mimeType"/>
    <liferay-ui:search-container-column-text orderable="true" name="Title"
     property="title"/>
    </liferay-ui:search-container-row>
<liferay-ui:search-iterator/>

Answer 1

你排队的身份证明：

long fileId = values.get(i).getClassPK();

不是文件ID，而是文件版本ID。尝试替换你的行：

 fileEntry =  DLAppLocalServiceUtil.getFileEntry(fileId);

以下一个：

 fileEntry = DLAppLocalServiceUtil.getFileVersion(fileId).getFileEntry();

br，Pawel

Answer 2

由于无法将FileEntry强制转换为DLFileEntry，因此最好从此行获取fileEntryId

  long fileEntryId2 = DLAppLocalServiceUtil.getFileVersion(fileId).getFileEntryId();

然后

   fileEntry = DLFileEntryLocalServiceUtil.getDLFileEntry(fileEntryId2);

无法根据liferay中的expando值获取DLFileEntry对象

2 个答案: